Correlations between 9Be magic-angle spinning nuclear magnetic resonance spectra and the geometry of beryllium containing framework structures.
A range of sodalite framework structures containing beryllium with general formula M8[BeZO4]6X2; M = Cd, Zn, Z = Si, Ge and X = S, Se or Te have been synthesised. The structures of these materials, which contain a single beryllium environment, have been refined from powder neutron diffraction or powder X-ray diffraction data and the compounds further characterised using 9Be magic-angle spinning nuclear magnetic resonance (MASNMR). Spectra show a single sharp resonance for 9Be(OSi)4 in the chemical shift range +/- 1 ppm from 0.1 M BeCl2. Correlations between the Be-O-Z bond angles and the 9Be chemical shift are reported and show upfield shifts for larger angles as seen previously in MASNMR spectra for 29Si and 27Al.
Dann
S E
SE
Department of Chemistry, University of Southampton, Highfield, UK.
Weller
M T
MT
D001608:Beryllium / Q000737:chemistry*; D003460:Crystallization; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D014961:X-Ray Diffraction
D001608:Beryllium